# Flexible Mechanisms: The "flexibility" mechanisms which the United States had strongly favored when the Protocol was initially put together, including emissions trading; Joint Implementation (JI); and the Clean Development Mechanism (CDM) which allow industrialized countries to fund emissions reduction activities in developing countries as an alternative to domestic emission reductions.
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It also created the Flexibility Mechanisms, Joint Implementation and the Clean Development Mechanism (CDM), that enabled the creation and use of carbon credits from greenhouse gas emission reduction projects.